Tree for boots and shoes.



No. 874,619 PATENTBD DEC 24, 1907.

TREE FOR BOOTS AND SHOES.

Arrmomlon nun nuns. 190a.

- 3 sums-inns: 1.

PATENTED DEC. 24, 1907.

P. G. PABST. TREE TOR BOOTS AND SHOES.

APPLICATION nun JULY 19. 1900.

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PATENTED DEC. 24, 1907.

\ F e PABST TREE FOR BOOTS AND SHOES. APPLIOATION FILED JULY 19 1906 .zwmw (9/. w.

FRIEDRICH GUSTAV PABST, OF HAMBURG, GERMANY.

TREE FOR BOOTS AND SHOES.

Specification of Letters Patent.

Patented Dec. 24, 1907.

Application filed July 19 1906. Serial No. 826,852-

To all whom it may concern:

Be it known that I, FRIEDRICH GUsTAv PABsT, a subject of the German Emperor, and resident of Hamburg, in the German gin ire, have invented certain new and use- Shoes, of which the following is a specification.

The present invention relates to a so-called boot-tree or shoe-last consisting of two parts, the toe-piece and the heel-piece, which can be held by ratchet mechanism in the osition in which they are set at each time. oot or shoe stretchers of this kind are already known. In order to effect the release and fixing again of the ratchet mechanism as conveniently as possible, a sliding rod is guided, according to the present oted handle in such a way that it pro ects upwards out of the handle and canbe pressed inwards by the thumb against the ressure of a spring, said handle being adapted to set the last in its required position. The sliding rod is connected at its lower end with the pawl of the ratchet mechansim, and in its lowermostposition releases said pawl, while the mechanism is at once in engagement again as soon as the slidingrod is released and said spring operates.

- More particularly my invention consists in an improved boot-tree and in order that the details of construction and action of my invention may be more clearly understood,

reference is made to the accompanying draw-- ings in which:

' Figure 1 is a vertical section of the improved boot-tree in a shoe; Figs 2 & 8 are vertical sections of two modifications of the same, and Fig. 4 is a vertical elevation partly in section of the handle of the form shown in Fi 3. imilar letters of reference refer to similar parts in all views.

In the forms shown in Figs. 1 and 2, the handle h forms an extension of a rod 9 of .a parallelogramg, 0, d forming an articulated -(pnnection between the toe-piece a and the heel-piece b. In the form as shown in Fig. 1, the ratchet-teeth 0 of the ratchet mechanism are arranged on the upper rod 0 of the parallelogram in an arc congentric with the connecting pivot of the rods 0 and g. The pawl i is mounted revohibly on the handle h and is connected by an extension extending above its pivot with the sliding rod is guided in the handle h. A button on is provided on Improvements in Trees for Boots and invention, in a piv' I said sliding rod k, preferably at its upper projecting end, against which a spring a presses from below so that the rod 7c and pawl i are held in engagement with the ratchet mechanism in the highest position of said rod.

has been released by it is possible to turn the ratchet mechanism pressing the button i, the handle forwards or to extend or contract the tree. If the button is released, the pawl i snaps into the ratchet and holds the last in the position in which it. is set.

In the form shown in the ratchet are on thelower edge of the rod (1. The sprin p forms the pawl which is proportionately ong and curved in order to work according to the deflection of the parallelogram and is fastened to an extension of the rod 0. In this case the sliding rod is acts directlyon the spring p,

m, said spring acting simultaneously as a Inthe form illustrated in Figs. 3 and 4, the parallelogram is replaced by a parallel slider. The rod d which revolubly engages the heelpiece I) is guided parallel to the rod 0 formed of two thin plates engaging the toe-piece a referablyby a pin the rod (1 engaging in a ongitudinal slot 1 0% the rod 6 and a pin .9 of the latter engaging in a slot t of the rod (1 Still more guiding pins 11. may be provided. 'In this case the ratchet-teeth 0 are on the upper edge of the rod (1 and the pawl 71 is revolubly mounted on an enlar ement of the rode and is provided with a ho low trunnion e which is held by a sliding ring w of the sliding rod 7c which is engaged by the spring a. The inside diameter of the trunnion o is be moved b the rod in without being revented by t e pivot engaging the hand 0 h and the rod 0 A slot as is provided in a fork-like extension g of the handle h, through which'the pin 9 of the rod (2 engages, so that by turning the handle forwards the tree can be extended and by turning the handle backwards, simultaneously raising the pawl i by pressing the button m, the tree can be contracted.

While I have described in the foregoing l specification the construction of parts preferred, I am aware that numerous changes of l construction may be made without departl ing from the spirit and scope of my invention, and I therefore do not wish to be underchosen so great that this and the pawl i canbackwards and thus in order to efiect the release of the spring 1) by pressing the button V a toe! iece, a heel-piece, articulated rods I claim:

a toestood as limiting myself to the positive terms employed. in connection with this description,e: :-epting sucha's the state of the art may reqmre.

1. A tree for boots and shoes comprising adapte to move parallel toeach other-and carrying the toe and heel-pieces and a detent adapted to 'enga teeth on one? of 'th'erods;

2. A tree for 'oots and shoes-comprising ie'ce, a heel-piece, articnla'ted rods adapte [to move parallel to eachother and carrying said toe and heel ie'ces, -a' handle connecting said rods, a aw ada ted to en" gage teeth on one of sai rods a Q a rod carriedlby the handle adapted to operate the aw p 3. A tree for boots and shoes comprising a toe-piece, aheel-piece, articulated rods movable arallel' to each other carrying the toe and heel-pieces, a handle connecting the rods, a pawl pivoted on the handle adapted to engage teeth on one of therods, a rod slidable in the handle pivotall connected tothelpawl, aspring to norma ly raise the ro'dand thereby hold the pawl in engagement with the teeth.

1 4. The combination with a toe-piece and a iheel piece, of. a toothed member connected to one ofjsaid pieces, a member eonnectcd to the other piece substantially-parallel to the toothed member, links connecting said member, means to automatically lock each flmem'her against movement'in one direction,

and means to release the locking means.

5. The combination wit'ha toe piece and a heel-piece, of a toothed rod connected to one of said pieces, a rod parallel to the toothed rod connected'to the other piece, links connecting the rods, a pawl to automatically en gage the teethdurmg the movement of the toothed rod in one direction and' means car'- ried by one of the links to actuate the awl.

FRIEDRICH GUSTAV PAB T.

Witnesses:

HARRY RoEcKNER, O'r'ro W. HELERWORTH. 

